KR102298520B1 - Fire Door - Google Patents

Abstract

The present invention relates to a fire door. More particularly, the present invention relates to a fire door that not only improves heat resistance and rigidity, but also prevents dew condensation and completely blocks the gap with a door frame in case of a fire to block the transmission of flames and harmful gases, thereby greatly improving product reliability and safety. According to the present invention, the fire door comprises: an inner member (110) existing inside the fire door in the shape of a door leaf in a hollow state; an outer member (120) existing outside the outer part of the fire door; and a stepped part (130) which is formed to protrude in a bent shape along the shape of the door frame (200) and extends to the outer member (120). A heat insulating member (600) is formed between the inner member (110) and the outer member (120), and a foam member (500) coupled to the inner member (110) or the outer member (120) is included in a gap space part between the door frame (200) and the fire door.

Description

Fire Door

The present invention relates to a fire door, and more particularly, to improve heat resistance and rigidity, and to prevent dew condensation and completely block a gap with the door frame in case of a fire to block the transmission of flames and harmful gases, thereby improving product reliability and safety. It is designed to be greatly improved.

In general, a fire door made of an iron plate is installed at the entrance of an apartment, home or office, etc. for the purpose of preventing the transmission of flames in case of a fire.

The fire door is mounted so as to be opened and closed on a door frame for a half door installed in the wall, and the door frame is also made of an iron metal plate.

Conventionally, in a structure for installing a fire door in a building in general, the fire door body 100 can be opened and closed while a door frame 200 of a size surrounding the outside is fixed to the building, and between the door frame 200 and the fire door body 100 . The hinge 300 is installed.

In addition, the gasket member 400 may be installed in one or two places at the contact portion between the door frame 200 and the fire door body 100 for noise prevention, insulation, and buffering during opening and closing.

In addition, the fire door main body 100 is formed of a metal plate of a certain thickness, and the outer member 120 forming the front side and the inner side forming the rear side of the fire door main body 100 are spaced apart from the rear side of the outer member 120 . It is composed of a member 110 .

Republic of Korea Patent Registration No. 10-0766199 (Registered on October 04, 2007) Republic of Korea Utility Model Registration No. 20-305989 (Registered on February 18, 2003) Republic of Korea Patent Registration No. 10-0823367 (registered on April 11, 2008)

In the conventional fire door configuration as described above, the fire door body has the iron plates of the outer member 120 and the inner member 110 bent, and the joint is connected by spot welding or rivets.

In the case of the main body of a fire door, it is common to fill the inside with an insulating material for insulation, but the outside is entirely made of a metal plate.

On the other hand, the fire door main body 100 has a part of the outer member 120 and the inner member 110 overlapping each other on the indoor side where the hinge 300 is installed as shown in FIGS. 1 and 2 to perform spot welding. will do

In addition, the other side of the fire door main body 100 on which the hinge 300 is installed is formed with a wing portion that covers the outside of the gasket member 400 in a state where the inner member 110 is surrounded by the outer member 120 , this wing The inner member 110 and the outer member 120 in the negative position are also bonded and fixed to the metal plate by performing spot welding in several places.

The spot welding (W) joint of the inner member 110 and the outer member 120 divided into two as described above has relatively weak high heat and joint strength.

Therefore, when the temperature of the sealed room increases in case of a fire, it is common that the fire door body 100 is damaged as the bonding force is lost at the spot welding (W) position.

For this problem, the safety standards for fire doors stipulate that they are not deformed or damaged even at a high temperature of 2000 degrees or more, but in the case of joints made by conventional spot welding (W), this regulation does not pass realistically.

Various types of reinforcement structures are applied to the part where the key cylinder is mounted, the hinge part to which the hinge is attached, and the corner part of the fire door so that the fire door can withstand various shocks applied from the outside.

For example, in Republic of Korea Patent Publication No. 10-0823367 'Welded window and door frame connection structure having a corner reinforcement connection structure and a window structure using the same and a manufacturing method thereof, technology is proposed.

In this case, although a separate frame reinforcing material is formed in the corner portion, it can be seen that the manufacturing process is very cumbersome, such as forming an opening in the corner portion of the frame and additionally combining the cover in order to install the frame reinforcing material. .

In addition, the inner member 110 and the outer member 120 constituting the main body 100 of the fire door are coupled by welding or the like in a state of overlapping mainly along the side portion. A structure in which the member 110 and the outer member 120 are joined in a folded state in two or three folds, respectively, is also known.

However, as discussed above, the fire door is mainly made of metal due to its functional characteristics, and the processing of the metal panel is mainly manufactured through a roll forming process. It is close to impossible, and this limits the application of the reinforcement structure shown in the prior art.

An object of the present invention is to provide a fire door that improves rigidity and prevents deformation and damage even in patent high heat in advance to comply with safety regulations.

Another object of the present invention is to provide a fire door capable of significantly improving thermal insulation to prevent dew condensation and ensure airtightness and sound insulation.

Another object of the present invention is to provide a fire door capable of significantly improving product reliability and safety by completely blocking the gap formed between the door frame and the door frame secured for opening and closing in the event of a fire to block the transmission of flames or harmful gases. is to do

In order to achieve the above object, in the present invention, the outer member 120 provided with the inner member 110 and the stepped portion 130 in the shape of a door leaf in a hollow state is bent and molded, and the insulation 150 is filled therein. In the fire door body 100,

The inner member 110 is a side position of the fire door main body 100, the outer plate 112 is extended to lead to the protrusion 111 that protrudes toward the door frame 200,
The inner plate 113 is bent to overlap from the end position of the outer plate 112, and the end portion is provided with a support portion 114 so as to be in close contact with the inner surface of the inner member 110,
The outer member 120 is integrally formed with the outer support wall 122 from the stepped portion 130 while maintaining the distance from the inner plate 113, and the inner support wall ( 123) is installed standing up while maintaining a distance from the support part 114,
A coated foam member 500 that is foamed by heat is attached to the outer plate 112,
In the interval between the inner plate 113 and the outer support wall 122, a non-ferrous heat insulating member 600 is installed,
The heat insulating member 600 is a first fitting portion 610 in a "┛" shape so that the inner plate 113 is inserted into the space formed between the bent top portion from the lower end of the stepped portion 130 and the outer plate 112. In addition to protruding,
The second fitting portion 620 in a “┍” shape to fit into the space between the normal position where the inner support wall 123 is bent from the outer support wall 122 and the support portion 114 that is integrally bent to the inner plate 113 . is extruded and molded,
A ceramic board 140 is attached to the inner surface of the inner member 110 and the outer member 120 at the upper end and lower end positions of the fire door body 100,
In a state in which the coated foam member 500, the outer plate 112, the inner plate 113, and the heat insulating member 600, the outer support wall 122, and the inner support wall 123 are sequentially in close contact with each other, the rivet member is It is characterized in that it is coupled by a riveting operation to be installed.
Here, the heat insulating member 600 is preferably a ceramic material having a plate shape of a certain thickness.

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The lower end of the inner support wall 123 may be bent and molded along the inner upper surface of the stepped portion 130 .

In addition, the lower end of the inner support wall 123 may extend to the inner surface of the outer member 120 and the support surface 124 may be bent to be in close contact.

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According to the present invention, heat resistance and rigidity are improved and dew condensation can be prevented.

In addition, in the event of a fire, the product reliability and safety can be greatly improved by completely blocking the gap with the door frame to block the transmission of flames and harmful gases.

In addition, it is possible to pass various product safety regulations, as well as to secure airtightness and sound insulation, thereby improving the commercial properties.

1 is a cross-sectional view showing the configuration of a conventional fire door.
FIG. 2 is a partially enlarged cross-sectional view of FIG. 1 ;
Figure 3 is a cross-sectional view showing the configuration of the fire door of the present invention.
Figure 4 is a front view showing the configuration of the fire door of the present invention.
5 is a partially enlarged cross-sectional view of FIG.
6 is an enlarged cross-sectional view illustrating a state in which the coated foam member is expanded to seal the space between the door frames.
7 is an enlarged cross-sectional view showing an embodiment of the heat insulating member of the present invention.
8 is an enlarged cross-sectional view showing another embodiment of the present invention.
9 is an enlarged cross-sectional view showing a modified example of the heat insulating member according to the embodiment of FIG.
10 is an enlarged view of part A of FIG. 7 ;

The present invention is intended to illustrate and describe specific embodiments in the drawings, since various changes can be made and various embodiments can be made.

However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be

On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the embodiment will be described in detail with reference to the accompanying drawings, but regardless of the reference numerals, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted.

1 and 2 are cross-sectional views showing the configuration of a conventional fire door.

3 to 10 show a fire door structure to which the present invention is applied.

The fire door body 100 has a hollow space inside, and the inner member 110 and the outer member 120 are coupled in a state of overlapping each other at a side position so as to have a door leaf shape as a whole, and a heat insulating material 150 is filled therein. will lose

The door frame 200 surrounds the outer edge of the fire door body 100 and is fixedly installed in a building, and the concave portion 210 is formed to be concavely recessed toward the inside at the position of the contact surface with the fire door body 100 .

In addition, a rubber gasket member 400 is installed in the recess 210 to insulate between the door frame 200 and the fire door body 100 and to have airtightness and sound insulation properties.

The fire door body 100 is connected and installed so as to be opened and closed from the door frame 200 by a hinge, and the inside of the door frame 200 is also filled with a heat insulating material or sachum.

In addition, a plurality of separation spaces 240 for preventing dew condensation by blocking heat transfer are intermittently drilled in the door frame 200 .

The internal space of the fire door body 100 is filled with a heat insulating material 150 including a honeycomb.

The fire door body 100 having such a structure is bent and molded from two metal plates divided into an inner member 110 and an outer member 120 , and after overlapping each other along the periphery of the side portion of the fire door body 100 , they are combined will make it

The outer member 120 is formed by bending the stepped portion 130 along the shape of the door frame 200 .

The fire door of the present invention is formed to overlap each other in double layers along the side edges of the inner member 110 and the inner member 120, and the heat insulating member 600 is interposed in the gap between them, and is formed between the door frame 200 When high heat is transferred to the gap position due to the occurrence of a fire, the covering foam member 500 that foams is installed.

That is, as for the inner member 110 , the outer plate 112 extends from the protrusion 111 protruding toward the door frame 200 to the side position of the fire door body 100 .

And, after bending the inner plate 113 so as to overlap in double layers from the end position of the outer plate 112, the end portion extends to the inner surface position of the inner member 110 to be in close contact with the support portion 114 is bent at an approximately right angle.

In addition, the outer member 120 is integrally formed with an outer support wall 122 in parallel with the inner plate 113 from the stepped portion 130 while maintaining a distance from the inner plate 113, and the outer side The inner support wall 123 is installed standing up to a predetermined height so as to overlap the support wall 122 in a double layer.

In this state, the coated foam member 500 that is foamed by heat is attached to the outside of the outer plate 112 .

The coated foam member 500 is made of a material that foams when high heat is generated due to a fire, and normally maintains a plate shape of a certain thickness as shown in FIG. 5 .

As shown in the figure, just before foaming due to high heat, the thickness of the coated foam member 500 is approximately the same as the height of the protrusion of the protrusion 111 to be installed.

6 illustrates a state in which the gap formed between the door frames 200 is completely blocked while foaming is made in the coated foam member 500 by high heat due to the occurrence of a fire.

Accordingly, it is possible to block a case in which a flame or harmful gas is transmitted through a gap between the fire door body 100 and the door frame 200 .

In addition, a non-ferrous heat insulating member 600 is installed in the gap formed between the inner plate 113 and the outer support wall 122 .

Here, the heat insulating member 600 is preferably formed of a ceramic material in a plate shape of a predetermined thickness.

The thermal insulation member 600 made of a ceramic material is interposed between the inner member 110 and the outer member 120 to block heat transfer to prevent condensation in particular.

In addition, the heat insulating member 600 has excellent strength and has the effect of improving the rigidity of the fire door itself.

Meanwhile, the lower end of the inner support wall 123 may be bent and molded along the inner upper surface of the stepped portion 130 as shown in FIGS. 5 to 7 .

In addition, the lower end of the inner support wall 123 may extend to the inner surface of the outer member 120 as shown in Figs.

A ceramic board 140 is attached to the inner surface of the inner member 110 and the outer member 120 at the upper end and lower end positions of the fire door body 100 (Figs. 3 and 4).

On the other hand, the heat insulating member 600 has a first fitting part ( 610) can be protruded (FIG. 10).

Accordingly, the strength is further improved by filling the space formed between the inner member 110 and the outer member 120 .

In addition, the heat insulating member 600 is inserted into the space between the normal position where the inner support wall 123 is bent from the outer support wall 122 and the support part 114 integrally bent to the inner plate 113 "┍" The second fitting portion 620 may protrude in the shape. (FIGS. 7 and 9)

The protruding configuration of the second fitting portion 620 has an effect of increasing the section modulus of the heat insulating member 600 to further improve the rigidity and heat insulation performance of the entire fire door.

In the fire door of the present invention configured as described above, the coated foam member 500, the outer plate 112, the inner plate 113, and the heat insulating member 600, the outer support wall 122, and the inner support wall 123 are sequentially formed, respectively. Assembling is completed by riveting by drilling a hole for installing a rivet (not shown) in a state in close contact with the rivet and riveting each of the above structures to be combined with the rivet.

The riveting operation is repeatedly molded along the side edge of the fire door while maintaining an appropriate distance in consideration of the designed strength.

The heat insulating member 600 and the coated foam member 500 are all installed along the periphery of the door leaf type fire door.

In particular, by simultaneously fastening each of the members with rivets, heat insulation and strength are greatly enhanced, so that it is possible to block damage to the joint due to high indoor temperature in the event of a fire.

In addition, it is a useful invention that can be safely protected from dangerous cases such as spreading of flames and harmful gases.

In the above, the present invention has been described in detail only with respect to the described embodiments, but it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical spirit of the present invention, and it is natural that such modifications and modifications belong to the appended claims. will be.

100 - fire door body 110 - inner member
111 - protrusion 112 - outer plate
113 - inner plate 114 - support
120 - outer member 122 - outer support wall
123 - inner support wall 124 - support surface
150 - stiffener 200 - door frame
210 - recess 240 - separation space
300 - hinge 400 - gasket member
500 - Covered foam member 600 - Reinforcement member
610 - first fitting portion 620 - second fitting portion

Claims (8)

In the shape of a door leaf in a hollow state, the inner member 110 existing inside the fire door, the outer member 120 existing outside the fire door, and the door frame 200 are formed to protrude in a bent shape. and is formed to include a stepped portion 130 extending from the outer member 120 and forming a heat insulating member 600 between the inner member 110 and the outer member 120, In the fire door 100 including the foam member 500 coupled to the inner member 110 or the outer member 120 in the space between the door frame 200 and the fire door,
The inner member 110 is formed by bending the protrusion 111 protruding toward the door frame 200 , the outer plate 112 connected from the protrusion 111 , and the end of the outer plate 112 . It consists of an inner plate 113 and a support 114 extending from the inner plate 113, whereby the outer plate 112 and the inner plate 113 are coupled to each other to form a double layer, Even in the case of the support part 114, it is coupled to the inner member 110 to form a double layer,
The outer member 120 is connected through the stepped portion 130 and is bent at the position of the outer support wall 122 formed in the direction of the door frame 200 and the end of the outer support wall 122 , It is composed of the formed inner support wall 123, whereby the outer support wall 122 and the inner support wall 123 form a double layer,
The mutual relationship between the inner member 110 and the outer member 120 is that the inner plate 113 of the inner member 110 and the outer support wall 122 of the outer member 120 are spaced apart from each other at a predetermined interval. are formed side by side with each other,
The heat insulating member 600 is installed in the space between the inner plate 113 and the outer support wall 122, whereby the inner member 110 formed as a double layer and the outer member also formed as a double layer Protected by 120, at the lower end of the insulating member 600, a first fitting part ( 610) and the upper end of the heat insulating member 600, a second fitting portion 620 is formed to protrude into the space formed between the bent end of the outer member 120 and the support portion 114, and ,
The foam member 500 is formed on the outside of the outer plate 112 of the inner member 110 is coupled,
The mutual relationship between the foam member 500 and the heat insulating member 600 is that the foam member 500 is coupled to the outer plate 112 of the inner member 110, and the heat insulating member 600 is the It is coupled to the inner plate 113 of the inner member 110, whereby the foam member 500 and the heat insulating member 600 are installed in parallel with each other using the inner member 110 as a coupling medium. The fire door 100, characterized in that it becomes.
The method of claim 1,
The heat insulating member (600) is a fire door (100), characterized in that it is formed of a ceramic material having a plate shape of a certain thickness.
The method of claim 1,
The inner support wall (123) is a fire door (100), characterized in that the lower end thereof is extended to be bent along the inner upper surface and reach the stepped portion (130).
The method of claim 1,
The inner support wall (123) has its lower end extended and bent to reach the inner surface of the outer member (120) and closely adhere to it to form a support surface (124).



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